<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS3 Transition 过渡</title>
</head>
<style>
    .wapper{
        width: 100px;
        height: 100px;
        background-color: red;
        margin: 100px auto;
        transition-property: width,height,background-color;
        transition-duration: 2s;
        transition-timing-function: ease;
        transition-delay: .1s;
    }
    .wapper:hover{
        width: 200px;
        height: 200px;
        background-color: blue;
    }
</style>
<body>
    <div class="wapper">

    </div>
</body>
</html>